Walker



FIG. 1 is a first perspective view of a walker according to the present invention;

FIG. 2 is a second perspective view of the walker of FIG. 1;

FIG. 3 is a third perspective view of the walker of FIG. 1;

FIG. 4 is a fourth perspective view of the walker of FIG. 1;

FIG. 5 is a left side view of the walker of FIG. 1;

FIG. 6 is a rear view of the walker of FIG. 1;

FIG. 7 is a right side view of the walker of FIG. 1;

FIG. 8 is a front view of the walker of FIG. 1;

FIG. 9 is a top view of the walker of FIG. 1; and,

FIG. 10 is a bottom view of the walker of FIG. 1. 

CLAIM The ornamental design for a walker, as shown and described. 